Eyeglasses.



g uNrrEio AsirafrEs PATENT OEEIOE. y

I JOSEPH D. LEW-isor sr. PAUL, MINNESOTA. i.

" EYEAGLASSES.'

Specification of Letters Patent.

Patented' Jan. '8, 1907.

Application le March 19. 1906. Serial No. 306.921.

To dll whom it may concern: Be it known that I, JOSEPH D. LEWIS, of

St. Paul, in the county of'Ramsey, State'of Minnesota, have invented ,certain new and useful Improvements in Eyeglasses, of which the following'is a s eciication.

My invention re atesto improvements in eyeglasses, and lparticularly to eyeglasses provided with a rigid bridge or nose-piece.

The invention consists generally -in eyeglasses having a suitable bridge, with lensclamps adapted to slide toward yand from their movement.

each other in ysuitable supports at the ends of -the bridge, nose-guards or rips connected and movin with said lens-c amps and with means for olding said guards and clamps with a yielding pressure at the inner limit of The invention consists, further, in the constructions and combinations hereinafter de scribed, and particularly pointed out in the claims. y

In the accompanying drawings, forming part of this specification, Figure 1 is a rear elevation of a pair of eyeglassesembodying my invention. Fig. 2 is a similar view showing the ards, lens-clamps, and lenses moved outwar to the full extent of their movement.-

Fig. 3 is a vertical transverse section through the center of the'bridge. Fig. 4 is a longitudinal section through one of the studs, showing the arrangement ofsthe sliding guard and post.

In the drawings, 2 2 represent the lenses, which are of any suitable form or structure. 3 represents the bridge. I prefer for this purpose to use a rigid bridge, which may be A' of any preferred form or structure.

The nose-guards or grips 4 4 are of any desired form or structure, and they are supported at the ends of the bridge, so as to be capable of sliding toward or from each other. Isecure the nose-guards or grips rigidlyto the lens-clamps, so that said guards and clamps slide together.

As here shown, at each end ofthe bridge is a hollow stud 5, through which passes a combined post and lens-clamp 6. This stud is provided, preferably upon itsJ4 under side,-

with a slot 7, preventing any rotary movement of the lenses, and the guard 4 is secured to theend of the post 6 by means of a suitable screw 8. The arm of the guard 4 passes through the slot 7 and is guided by said slot in its sliding movement.

A suitable spring 9 is arranged within the piece stud 5, bearingat one end against the inturned wall of the stud and at the other against the guard 4. This spring, it will be seen, surrounds the sliding post 6 and tends to move the guard and lens-clamp inward to ,the inner. limit of their movementor until the shoulder formed by the outer partof the lens-clampis brought against the end of the It will be seen that with thisstructure the guards and lens-clamps are pressed directly toward each other on a horizontal line, but that the guards are held with a yielding presi sure against the sides of the nose of the wearer. It will also be noted that the lensclamps move with the guards.

In order to put the glasses in position, the

edges of the lenses are gras ed and the lenses are drawn awayfrom eac other or pulled a art on a horizontal line, thereby causin t e posts to slide in the hollow studs an separating the uards suflioiently to permit the glasses to e properly put in upon the nose of the wearer. W en the lenses are released, the s rings press the guards against the sides o the nose of the osition wearer w1th sufiicient pressure to retain the zontal axes in the same lane with said guides and nose-guards carrie by said clamps.

, 2. The combination, with a curved rigid bridge-piece adapted to iit ythe nose of the wearer, and provi'ded at its ends with horizontal guides in line with each other, of lensy clamps supported andv arranged to slide on said guides, nose-guards carried by said clamps, and springs tendin to move said4 lens-clamps and nose-guar s other.'v

8. The combination, with a suitable bridge- (provided at its -ends with guides arrange in line with each other,.'o f vlensclamps mountedfand ada ted to slide on said guides, lenses supported y said clamps with their horizontal axesin thefsame horizontal lane with said guides,noseguards carried y said lens-clamps.,V andsprings tending to toward each,

move said lens-clamps and nose-guards tosliding posts arranged in said studs, springs said posts.

`each other, slidingv posts arranged in said ward each other.

4. The combination, with a ri id bridge provided at its ends with' the hol o'w studs,

engaging said posts, and lens-clamps and nose-guards supported by andmoving with 5. The combination, with the rigid bridge 1provided at `its ends with the studs having orizon-tal openings therethrough in line with sald openings and adapted to slide therein, lensclan1ps secured to said posts.l noseguards also secured to said posts, and suiti able springs arranged to engage said posts" and to move said guards towardeachother, substantially as described. l

7. The combination, with the brid e, of the hollow stud 5 at each end thereo the sliding post 6 arranged in said stud with a lens-clamp secured to one end of the post and a nose-guard to the other, and a spring en` gaging said post and arranged to move said guard inward, substantially as described.

8. The combination, with the bridge lro vided at each end with a hollow stud 5 aving a longitudinal slot 7, of a combined post and lens-clamp 6 arranged in said hollowstud, a nose-guard 4 secured to saidl post, and a spring 9 arranged Within said stud and engaging Vsaid guard, for the purpose set forth.

In witness whereof I have hereunto set my hand this 9th day of March, 1906.

JOSEPH D. LEWIS.

Witnesses: v

CLARA G. HANsoN, A. C. PAUL. 

